okta_brand resource brand_id = default and okta_auth_server_default name = default

[monde]

brand_id can be set as default to retrieve the default brand w/o knowing its true ID.

Improved default authorization server behavior for default brand while keeping legacy behavior.

[monde]

@duytiennguyen-okta the VCR harness doesn't seem to be dropping files into the fixture folder. For instance, in the example below for mm-oie-2022-10-07-max and the TestAccDataSourceOktaBrand_read test I'd expect to see the file ./test/fixtures/vcr/TestAccDataSourceOktaBrand_read/mm-oie-2022-10-07-max.yaml file written out. But it's not, am I calling the record command correctly? The tests do run and pass, only the yaml is not be written to disk.

$ OKTA_VCR_CASSETTE=mm-oie-2022-10-07-max \
  make test-record-vcr-acc \
  TEST=./okta TESTARGS='-run=TestAccDataSourceOktaBrand_read'

$ OKTA_VCR_CASSETTE=mm-oie-2022-10-07-max \
  make test-record-vcr-acc TEST=./okta \
  TESTARGS='-run=TestAccResourceOktaBrand_import_update'

$ OKTA_VCR_CASSETTE=mm-oie-2022-10-07-max \
  make test-record-vcr-acc \
  TEST=./okta TESTARGS='-run=TestAccResourceOktaBrand_default_brand'